AS Summary 28745 Number of ASes in routing system 12143 Number of ASes announcing only one prefix 4968 Largest number of prefixes announced by an AS AS4538 : ERX-CERNET-BKB China Education and Research Network Center 88347392 Largest address span announced by an AS (/32s) AS721 : DISA-ASNBLK - DoD Network Information Center

Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes').

AS Summary 28800 Number of ASes in routing system 12189 Number of ASes announcing only one prefix 4978 Largest number of prefixes announced by an AS AS4538 : ERX-CERNET-BKB China Education and Research Network Center 88347392 Largest address span announced by an AS (/32s) AS721 : DISA-ASNBLK - DoD Network Information Center

Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes').

AS Summary 28851 Number of ASes in routing system 12197 Number of ASes announcing only one prefix 4982 Largest number of prefixes announced by an AS AS4538 : ERX-CERNET-BKB China Education and Research Network Center 88350976 Largest address span announced by an AS (/32s) AS721 : DISA-ASNBLK - DoD Network Information Center

Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes').

AS Summary 28884 Number of ASes in routing system 12209 Number of ASes announcing only one prefix 4986 Largest number of prefixes announced by an AS AS4538 : ERX-CERNET-BKB China Education and Research Network Center 88350976 Largest address span announced by an AS (/32s) AS721 : DISA-ASNBLK - DoD Network Information Center

Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes').

AS Summary 28973 Number of ASes in routing system 12245 Number of ASes announcing only one prefix 4989 Largest number of prefixes announced by an AS AS4538 : ERX-CERNET-BKB China Education and Research Network Center 88348160 Largest address span announced by an AS (/32s) AS721 : DISA-ASNBLK - DoD Network Information Center

Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes').

AS Summary 29004 Number of ASes in routing system 12265 Number of ASes announcing only one prefix 5007 Largest number of prefixes announced by an AS AS4538 : ERX-CERNET-BKB China Education and Research Network Center 88347136 Largest address span announced by an AS (/32s) AS721 : DISA-ASNBLK - DoD Network Information Center

Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes').

AS Summary 29073 Number of ASes in routing system 12284 Number of ASes announcing only one prefix 5013 Largest number of prefixes announced by an AS AS4538 : ERX-CERNET-BKB China Education and Research Network Center 88346112 Largest address span announced by an AS (/32s) AS721 : DISA-ASNBLK - DoD Network Information Center

Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes').

AS Summary 29174 Number of ASes in routing system 12319 Number of ASes announcing only one prefix 5015 Largest number of prefixes announced by an AS AS4538 : ERX-CERNET-BKB China Education and Research Network Center 88350208 Largest address span announced by an AS (/32s) AS721 : DISA-ASNBLK - DoD Network Information Center

Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes').

AS Summary 29241 Number of ASes in routing system 12343 Number of ASes announcing only one prefix 5015 Largest number of prefixes announced by an AS AS4538 : ERX-CERNET-BKB China Education and Research Network Center 88351232 Largest address span announced by an AS (/32s) AS721 : DISA-ASNBLK - DoD Network Information Center

Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes').

AS Summary 29282 Number of ASes in routing system 12381 Number of ASes announcing only one prefix 5010 Largest number of prefixes announced by an AS AS4538 : ERX-CERNET-BKB China Education and Research Network Center 88406528 Largest address span announced by an AS (/32s) AS721 : DISA-ASNBLK - DoD Network Information Center

Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes').

AS Summary 29348 Number of ASes in routing system 12435 Number of ASes announcing only one prefix 5028 Largest number of prefixes announced by an AS AS4538 : ERX-CERNET-BKB China Education and Research Network Center 88406528 Largest address span announced by an AS (/32s) AS721 : DISA-ASNBLK - DoD Network Information Center

Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes').

AS Summary 29399 Number of ASes in routing system 12454 Number of ASes announcing only one prefix 5025 Largest number of prefixes announced by an AS AS4538 : ERX-CERNET-BKB China Education and Research Network Center 88271360 Largest address span announced by an AS (/32s) AS721 : DISA-ASNBLK - DoD Network Information Center

Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes').

AS Summary 29495 Number of ASes in routing system 12509 Number of ASes announcing only one prefix 5018 Largest number of prefixes announced by an AS AS4538 : ERX-CERNET-BKB China Education and Research Network Center 88406272 Largest address span announced by an AS (/32s) AS721 : DISA-ASNBLK - DoD Network Information Center

Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes').

AS Summary 29547 Number of ASes in routing system 12513 Number of ASes announcing only one prefix 5032 Largest number of prefixes announced by an AS AS4538 : ERX-CERNET-BKB China Education and Research Network Center 88349184 Largest address span announced by an AS (/32s) AS721 : DISA-ASNBLK - DoD Network Information Center

Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes').

AS Summary 29644 Number of ASes in routing system 12561 Number of ASes announcing only one prefix 5035 Largest number of prefixes announced by an AS AS4538 : ERX-CERNET-BKB China Education and Research Network Center 88349184 Largest address span announced by an AS (/32s) AS721 : DISA-ASNBLK - DoD Network Information Center

Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes').

AS Summary 29678 Number of ASes in routing system 12571 Number of ASes announcing only one prefix 5049 Largest number of prefixes announced by an AS AS4538 : ERX-CERNET-BKB China Education and Research Network Center 88278016 Largest address span announced by an AS (/32s) AS721 : DISA-ASNBLK - DoD Network Information Center

Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes').

AS Summary 29758 Number of ASes in routing system 12598 Number of ASes announcing only one prefix 5046 Largest number of prefixes announced by an AS AS4538 : ERX-CERNET-BKB China Education and Research Network Center 88343552 Largest address span announced by an AS (/32s) AS721 : DISA-ASNBLK - DoD Network Information Center

Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes').

AS Summary 29805 Number of ASes in routing system 12615 Number of ASes announcing only one prefix 5049 Largest number of prefixes announced by an AS AS4538 : ERX-CERNET-BKB China Education and Research Network Center 88278016 Largest address span announced by an AS (/32s) AS721 : DISA-ASNBLK - DoD Network Information Center

Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes').

AS Summary 29924 Number of ASes in routing system 12670 Number of ASes announcing only one prefix 5055 Largest number of prefixes announced by an AS AS4538 : ERX-CERNET-BKB China Education and Research Network Center 88277504 Largest address span announced by an AS (/32s) AS721 : DISA-ASNBLK - DoD Network Information Center

Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes').

AS Summary 29973 Number of ASes in routing system 12681 Number of ASes announcing only one prefix 5058 Largest number of prefixes announced by an AS AS4538 : ERX-CERNET-BKB China Education and Research Network Center 89832448 Largest address span announced by an AS (/32s) AS27064: DDN-ASNBLK1 - DoD Network Information Center

Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes').

AS Summary 30068 Number of ASes in routing system 12708 Number of ASes announcing only one prefix 5063 Largest number of prefixes announced by an AS AS4538 : ERX-CERNET-BKB China Education and Research Network Center 89764864 Largest address span announced by an AS (/32s) AS27064: DDN-ASNBLK1 - DoD Network Information Center

Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes').

AS Summary 30082 Number of ASes in routing system 12755 Number of ASes announcing only one prefix 5069 Largest number of prefixes announced by an AS AS4538 : ERX-CERNET-BKB China Education and Research Network Center 89820928 Largest address span announced by an AS (/32s) AS27064: DDN-ASNBLK1 - DoD Network Information Center

Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes').

AS Summary 30175 Number of ASes in routing system 12790 Number of ASes announcing only one prefix 5072 Largest number of prefixes announced by an AS AS4538 : ERX-CERNET-BKB China Education and Research Network Center 89886720 Largest address span announced by an AS (/32s) AS27064: DDN-ASNBLK1 - DoD Network Information Center

Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes').

AS Summary 30159 Number of ASes in routing system 12832 Number of ASes announcing only one prefix 4373 Largest number of prefixes announced by an AS AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc. 89828608 Largest address span announced by an AS (/32s) AS27064: DDN-ASNBLK1 - DoD Network Information Center

Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes').

AS Summary 30262 Number of ASes in routing system 12884 Number of ASes announcing only one prefix 4398 Largest number of prefixes announced by an AS AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc. 89820672 Largest address span announced by an AS (/32s) AS27064: DDN-ASNBLK1 - DoD Network Information Center

Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes').